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Virginia Administrative Code
Title 9. Environment
Agency 5. State Air Pollution Control Board
Chapter 30. Ambient Air Quality Standards
11/23/2024

9VAC5-30-80. Lead.

A. The primary and secondary ambient air quality standard for lead and its compounds is 1.5 micrograms per cubic meter, maximum arithmetic mean averaged over a calendar quarter, measured as elemental lead by a reference method based on Appendix G of 40 CFR Part 50, or by an equivalent method.

B. The standards set forth in subsection A of this section shall remain applicable to all areas notwithstanding the ambient air quality standard in subsection C of this section. The lead standard set forth in subsection A of this section shall no longer apply to an area one year after the effective date of the designation of that area, pursuant to § 107 of the federal Clean Air Act, for the lead ambient air quality standard set forth in subsection C of this section.

C. The primary and secondary ambient air quality standard for lead and its compounds is 0.15 micrograms per cubic meter, maximum arithmetic mean averaged over a three-month period, measured as lead either by (i) a reference method based on Appendix G of 40 CFR Part 50 and designated in accordance with 40 CFR Part 53; or (ii) an equivalent method designated in accordance with 40 CFR Part 53. The primary and secondary ambient air quality standards for lead are met when the maximum arithmetic three-month mean concentration for a three-year period, as determined in accordance with Appendix R of 40 CFR Part 50, is less than or equal to 0.15 micrograms per cubic meter.

Statutory Authority

§ 10.1-1308 of the Code of Virginia; §§ 108, 109 and 302 of the Clean Air Act; 40 CFR Parts 50, 53 and 58.

Historical Notes

Derived from VR120-03-08, eff. January 1, 1985; amended, Virginia Register Volume 20, Issue 24, eff. September 8, 2004; Volume 25, Issue 19, eff. June 24, 2009.

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